How to Use Port Knocking To Secure SSH Service in Linux
Port Knocking is a nifty technique of controlling access to a port by only allowing legitimate users access to the service running on a server. It works in such a way that when the
Linux Security Tips
LFCA: How to Improve Linux Network Security – Part 19
In an ever-connected world, network security is increasingly becoming one of the areas where organizations invest a great deal of time and resources. This is because a company’s network is the backbone of any
LFCA: Basic Security Tips to Protect Linux System – Part 17
Now more than ever, we are living in a world where organizations are constantly bombarded by security breaches motivated by the acquisition of highly sensitive and confidential data which is highly valuable and makes
Setup Passwordless SSH Login for Multiple Remote Servers Using Script
SSH Key-based authentication (also known as public-key authentication) allows for password-less authentication and it is a more secure and a much better solution than password authentication. One major advantage of SSH password-less login, let
23 CentOS Server Hardening Security Tips – Part 2
Continuing the previous tutorial on How to Secure and Harden CentOS server, in this article, we’ll discuss other security tips that will be presented on the below checklist. Requirements 20 CentOS Server Hardening Security
How to Install Memcached (Caching Server) on CentOS 7
Memcached is an open-source distributed memory object caching program that allows us to improve and speed up the performance of dynamic web applications by caching data and objects in Memory. Memcached is also used
How to Check Integrity With AIDE in Fedora
AIDE (Advanced Intrusion Detection Environment) is a program for checking the integrity of a file and directory on any modern Unix-like system. It creates a database of files on the system, and then uses
How to Use Fail2ban to Secure Your Linux Server
Improving your server security should be one of your top priorities when it comes to managing a linux server. By reviewing your server logs, you may often find different attempts for brute force login,
How to Change FTP Port in Linux
FTP or File Transfer Protocol is one of the oldest network protocol used today as standard file transfers over computer networks. FTP protocol uses the standard port 21/TCP as command port. Although, there are
How to Check and Patch Meltdown CPU Vulnerability in Linux
Meltdown is a chip-level security vulnerability that breaks the most fundamental isolation between user programs and the operating system. It allows a program to access the operating system kernel’s and other programs’ private memory